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Due to the nondisjunctiuon of chromosome...

Due to the nondisjunctiuon of chromosomes during spermatogenesis, sperms carry both sex chromosomes (22A + XY) and some sperms do not carry any sex chromosome (22A + O). If these sperms fertilise normal eggs (22A + X), what types of genetic disorders appear among the offsprings ?

A

Kilnefelter's syndrome and Turner's syndrome

B

Down's syndrome and Kinefelter's syndrome

C

Down's syndrome and Turner's syndrome

D

Down's syndrome and Cri-du-chat syndrome

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The correct Answer is:
A
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Due to nondisjunction of chromosomes during spermatogensis, some sperms carry both sex chromosomes (22A + XY) and some sperms do not carry any sex chromosome (22A + O). If these sperms fertilise normal eggs (22A + X), what types of genetic disorders respecitively appear among the offspring ?

Due to nondisjuction of chromosomes during spermatogenesis some sperms cary both sex chromosomes (22A+XY) while others do not carry anysex chromosome (22A+O).If these sperms feticlize normal eggs (22A+X), What type of genetic disorders appear among the offspering

Due to nondisjunction of chromosomes during spermatogenesis , sperms carry both sex chromosomes ( 22A +XY ) and some sperms do not carry any sex chromosomes ( 22A+ X ) , what types of genetic disorder appear among the offsprings ?

Assertion: The presence of X or Y chromosome in the sperm determine the sex of the embryo Reason: All the eggs have one X chromosome.

Assertion :-In o graasshopper, some of the sperms bear X-chromosome whereas some do not. Reason :- Grasshopper is an example of XX-XY type of sex determination.

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